Alarm for rotary washing-machines.



- un. 634,712.1 Y I Patented oct. |o,..-|a 99.

' G. s. WHEELER.

' ALAHM FUR RUTARY WASHING MACHINES. 5

(Application lsd Isf. 27', 1899.)

(No ludici.)

, T0 caf/ZZ whom, it rita/y concern:

UNITED SIrJ FES PATENT i OFFICE. 'I

'cEoEeE E. WHEELER, y'on BELLoWs EALLs, VERMONT..`

ALARM 'Fo`R' ROTARY wAsHiNG-MACHINES.'

sPEcrEIcA'rIoN forming par: of Lettersratent No. 634,712, dated october 1o,-l 1899.

Application sied nach 27, ieee.

vBe it known that I, GEORGE B. WHEELER, of Bellows Falls, in the county of Windham and State of Vermont, have invented certain new and useful Improvements in Alarms for Rotary VVashing-Machines, of which the following is a specification.

This invention relates to alarmsadapted to give an audible signal which indicates the performance of a given number of movements or operations, so that an attendant receives notice when his services are required when the machine or apparatus to which the alarm is applied has operated a predetermined length of time.

The invention has for its object to provide a simple and eective adjustable alarm adapted for use -in connection with rotary Washing-machines the rotation of which is auto#l matically reversed at regular' intervals. j

The invention consists in theimprovements which I will now proceed to describev and claim. l

Of the accompanying drawings, forming a part of this specification, Figure l represents a side elevation of an alarm mechanism embodying my invention applied to the casing of a rotaryWashing-machine. Fig-2 represents a section online 2 2 of Fig; l.

The same letters of reference indicate the same parts in both gures.-

In the drawings, a represents a supporting frame or standard having a base ct', which is fitted to the casing b of a rotary Washing-machine and is adapted to be secured to said casing, as indicated in Fig. l. To the frame a is afxed a stud b', about whicha ratchettoothed disk c is adapted to rotate loosely.

d representsa lever fulcrumed at d on the frame c, the arms of said lever being of unequal length. A pawl e is fnlcrumed upon the shorter arm of the lever d and is adapted to engage the ratchet-teeth c' of thedisk c. When the lever d is oscillated on its pivot or fulcrum, the pawl e is moved back and forth and caused to impart a step-by-step rotation to the disk c, backward rotation of said disk being prevented by a stop-pawl f, fulcrumed on the framed. The disk is provided on one side with a projecting stud or pin g, which is arrangedto act upon the arm h of a hammer or striker hv', which is fulcrnmed at h2 on the r presently described.

Serial No. 710,594. (No model.)4V

supporting-franieand is normally held in the position shown in Fig. l by a spring '12.

j is a bell `mounted on the frame at and ar-V ranged to be struck by the hammer 7i' when the latter is operated by theprojection g, as

7o is ainger `or pointer, which is held in a iixedpositionby the stud b and projects over the outer side 'of the disk c. The disk is provided on its outer side with a series of marks,

-Which are preferably numerals, arranged at uniform distances apart, as shown in Fig. l.

The longer arm of the lever CZ is adapted `forconnection With an operating device, such as a rod m, whereby an oseillatin g motion may be imparted to the lever cl. Said rod maybe suitablyy connected with the reciprocating shipping device m' of the cylinder-reversing mechanism of a washing-machine, so that the disk will be rotated one step by each alternate movement of the said shipping device. The disk is freely rotatable in one direction by hand, so that it may be set or adj/usted with the projection g at any desired distance from the bell-hammer, thus requiring any desired number of movements of the shi pping device to operate the alarm.` The attendantmay therefore adjust the alarm for the number of rotations of the cylindervvhich is desirable for the particular Work to be done, some stages or kinds of work requiring a dierent number of rotations from others. After the alarm is set the attendant can attend to other duties until the alarm is sounded, notice being `thus given that the machine should be stopped or otherwise attended to.

The device isy extremely simple and durable, is adapted to be operated with practically no resistance, and can be quickly adjusted to give any desired length of operation of the machine before the alarm is operated.

The construction of the lever (l with along arm and ashort arm, the latter carrying the pavvl e and the long arm connected with the rod m, particularly adapts the device for connection with mechanism such as a belt-shipping device, as indicated in the drawings.V In order to shift a belt from one pulley to another, considerable longitudinal motionv must be imparted to the belt-shipper. The amount of motion so imparted would be excessive if transmitted directly to a ratchet-operating IOO pawl; but with the arrangement of the lever as described the motion imparted to the disk c by the pawl is onlj7 that of one tooth, while the motion of the rod m, which oscillates the lever, is equal to that of the belt-shipper.

I claiml. An alarm of the character specilied, comprising a supporting frame or standard, a ratchet-toothed disk mounted to rotate thereon7 a bell or its equivalent mounted on the frame adjacent to the disk, a hammer or striker actuated by the rotation of the disk, a lever fulcrumed von the frame and having arms of unequal length, a pawl mounted on the shorter arm and engaged with the disk to impart a step-by-step rotation thereto when the lever is oseillated, the longer arm of the lever being adapted for connection with a reciprocating operating device7 and means for preventing backward rotation of the disk.

2. An alarm of the characterspecied, comprising a supporting arm or standard, a disk mounted to rotate thereon and having a hammer-actuating projection, a bell adapted t0 be operated by said proj ectiomthe lever d pivoted to the standard adjacent to the 'upper edge of the disk and having its short upper arm provided With a paWl e, the lower arm of said lever extending nearly to the plane of the lower edge of the disk and having an operating-rod m pivoted to its lower end.

3. An alarm ofthe character specified, Comprising a supporting frame or standard, a ratchet-toothed disk mounted to rotate thereon and having a hammer-actuating projection, said disk being free to rotate forwardly, a fixed pointer arranged to coperate with marks on the disk, a bell or its equivalent mounted on the frame, a hammer or striker arranged to be actuated by said projection, a'lever fulcrumed on the frame and having arms of unequal length, apawl mounted on the shorter arm of the lever and engaged with .the disk, and an operating device connected with the longer arm of the lever.

In testimony whereof I have afxed my signature in presence of two witnesses.

\Vitnesses:

C. F. BROWN, Y P. W. PEZZETTI. 

